Linux Kernel up to 6.1.146/6.6.99/6.12.39/6.15.7 soc unbind misc_deregister null pointer dereference

CVSS Meta Temp Score
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5.0$0-$5k0.00

Summaryinfo

A vulnerability marked as critical has been reported in Linux Kernel up to 6.1.146/6.6.99/6.12.39/6.15.7. This vulnerability affects the function misc_deregister of the file /sys/bus/platform/drivers/aspeed-lpc-snoop/unbind of the component soc. This manipulation causes null pointer dereference. This vulnerability is handled as CVE-2025-38487. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical was found in Linux Kernel up to 6.1.146/6.6.99/6.12.39/6.15.7. Affected by this vulnerability is the function misc_deregister of the file /sys/bus/platform/drivers/aspeed-lpc-snoop/unbind of the component soc. The manipulation with an unknown input leads to a null pointer dereference vulnerability. The CWE definition for the vulnerability is CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. As an impact it is known to affect availability. The summary by CVE is:

In the Linux kernel, the following vulnerability has been resolved: soc: aspeed: lpc-snoop: Don't disable channels that aren't enabled Mitigate e.g. the following: # echo 1e789080.lpc-snoop > /sys/bus/platform/drivers/aspeed-lpc-snoop/unbind ... [ 120.363594] Unable to handle kernel NULL pointer dereference at virtual address 00000004 when write [ 120.373866] [00000004] *pgd=00000000 [ 120.377910] Internal error: Oops: 805 [#1] SMP ARM [ 120.383306] CPU: 1 UID: 0 PID: 315 Comm: sh Not tainted 6.15.0-rc1-00009-g926217bc7d7d-dirty #20 NONE ... [ 120.679543] Call trace: [ 120.679559] misc_deregister from aspeed_lpc_snoop_remove+0x84/0xac [ 120.692462] aspeed_lpc_snoop_remove from platform_remove+0x28/0x38 [ 120.700996] platform_remove from device_release_driver_internal+0x188/0x200 ...

The advisory is shared at git.kernel.org. This vulnerability is known as CVE-2025-38487 since 04/16/2025. The exploitation appears to be difficult. Technical details are known, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 270134 (Debian dla-4328 : linux-config-6.1 - security update), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 6.1.147, 6.6.100, 6.12.40 or 6.15.8 eliminates this vulnerability. Applying the patch dc5598482e2d3b234f6d72d6f5568e24f603e51a/329a80adc0e5f815d0514a6d403aaaf0995cd9be/b361598b7352f02456619a6105c7da952ef69f8f/ac10ed9862104936a412f8b475c869e99f048448/56448e78a6bb4e1a8528a0e2efe94eff0400c247 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

The vulnerability is also documented in the databases at Tenable (270134) and CERT Bund (WID-SEC-2025-1665). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • Google Container-Optimized OS
  • Debian Linux
  • Amazon Linux 2
  • Red Hat Enterprise Linux
  • Ubuntu Linux
  • SUSE Linux
  • Oracle Linux
  • IBM QRadar SIEM
  • SUSE openSUSE
  • RESF Rocky Linux
  • Dell Avamar
  • NetApp ActiveIQ Unified Manager
  • Dell PowerProtect Data Domain
  • Open Source Linux Kernel
  • Dell NetWorker
  • Dell Secure Connect Gateway
  • IBM Security Verify Access

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.1
VulDB Meta Temp Score: 5.0

VulDB Base Score: 4.8
VulDB Temp Score: 4.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.5
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Nessus ID: 270134
Nessus Name: Debian dla-4328 : linux-config-6.1 - security update

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.1.147/6.6.100/6.12.40/6.15.8
Patch: dc5598482e2d3b234f6d72d6f5568e24f603e51a/329a80adc0e5f815d0514a6d403aaaf0995cd9be/b361598b7352f02456619a6105c7da952ef69f8f/ac10ed9862104936a412f8b475c869e99f048448/56448e78a6bb4e1a8528a0e2efe94eff0400c247

Timelineinfo

04/16/2025 CVE reserved
07/28/2025 +103 days Advisory disclosed
07/28/2025 +0 days VulDB entry created
01/25/2026 +181 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2025-38487 (🔒)
GCVE (CVE): GCVE-0-2025-38487
GCVE (VulDB): GCVE-100-317881
CERT Bund: WID-SEC-2025-1665 - Linux Kernel: Mehrere Schwachstellen

Entryinfo

Created: 07/28/2025 14:43
Updated: 01/25/2026 15:00
Changes: 07/28/2025 14:43 (60), 08/17/2025 20:46 (7), 08/24/2025 00:28 (1), 08/26/2025 18:42 (1), 10/01/2025 07:17 (1), 10/14/2025 06:47 (2), 10/18/2025 16:15 (1), 11/02/2025 03:56 (1), 11/16/2025 21:41 (1), 01/07/2026 17:46 (12), 01/25/2026 15:00 (1)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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